For a floating vessel, the center of buoyancy and the metacenter are in the line of action of the buoyant force ______.A.only when there is positive stabilityB.only when there is negative stabilityC.only when there is neutral stabilityD.at all times

题目

For a floating vessel, the center of buoyancy and the metacenter are in the line of action of the buoyant force ______.

A.only when there is positive stability

B.only when there is negative stability

C.only when there is neutral stability

D.at all times

相似考题

1.In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to ().A.heel until the angle of loll is reachedB.list until the center of buoyancy is aligned vertically with the center of gravityC.trim to the side opposite TCG until all moments are equalD.decrease draft at the center of flotation

2.A floating vessel will behave as if all of its weight is acting downward through the ______.A.center of gravityB.center of buoyancyC.center of floationD.Metacenter

3.At all angles of inclination, the metacenter is ______.A.vertically above the center of buoyancyB.vertically above the center of gravityC.at the intersection of the upright vertical centerline and the line of action of the buoyant forceD.at the geometric center of the underwater volume

4.With no environmental forces acting on the vessel，the center of gravity of an inclined vessel is vertically aligned with the ______．A.longitudinal centerlineB.center of flotationC.original vertical centerlineD.metacenter

更多“For a floating vessel, the center of buoyancy and the metacenter are in the line of action ”相关问题

  • 第1题：

    In the presence of external forces, the center of buoyancy of an inclined vessel is vertically aligned with the ______.

    A.center of gravity

    B.metacenter

    C.center of flotation

    D.Keel


    正确答案：B
    当存在外力时，倾斜船舶的浮心垂直对齐稳心。（浮心和稳心在同一垂面上）

  • 第2题：

    单选题
    What is the definition of transverse metacenter?（）
    A

    The distance between the actual center of gravity and the maximum center of gravity that will still allow a positive stability

    B

    The point to which G may rise and still permit the vessel to possess positive stability

    C

    The sum of the center of buoyancy and the center of gravity

    D

    The transverse shift of the center of buoyancy as a vessel rolls


    正确答案： A
    解析： 暂无解析

  • 第3题：

    单选题
    The center of buoyancy and the metacenter are in the line of action of the buoyant force（）.
    A

    only when there is positive stability

    B

    only when there is negative stability

    C

    only when there is neutral stability

    D

    at all times


    正确答案： C
    解析： 暂无解析

  • 第4题：

    单选题
    If a vessel list to port,the center of buoyancy will（）.
    A

    move to port

    B

    move to starboard

    C

    move directly down

    D

    stay in the position


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    In the presence of external forces，the center of buoyancy of an inclined vessel is vertically aligned with the（）.
    A

    center of gravity

    B

    metacenter

    C

    center of flotation

    D

    keel


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    When cargo is shifted from the main deck into the lower hold of a vessel，（）.
    A

    The metacenter will move downward

    B

    The GM will increase

    C

    The center of buoyancy will move upward

    D

    The list of the vessel will become great


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    In the absence of external forces, the center of gravity of a floating vessel is located directly above the（）.
    A

    metacenter

    B

    amidships

    C

    center of floatation

    D

    geometric center of the displaced volume


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    An unstable upright equilibrium position on a vessel means that the metacenter is（）.
    A

    lower than the center of gravity

    B

    at the same height as the center of gravity

    C

    higher than the baseline

    D

    on the longitudinal centerline


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    For a floating vessel, the center of buoyancy and the metacenter are in the line of action of the buoyant force（）.
    A

    only when there is positive stability

    B

    only when there is negative stability

    C

    only when there is neutral stability

    D

    at all times


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    For a floating vessel，the center of flotation is the point in the waterplane（）.
    A

    about which the vessel lists and trims

    B

    which coincides with the center of buoyancy

    C

    which，in the absence of external forces，is always vertically aligned with the center of gravity

    D

    which is shown in the hydrostatic tables as VCB


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    When cargo is shifted from the main deck into the lower hold of a vessel,（）.
    A

    The metacenter will move downward

    B

    The GM will increase

    C

    The center of buoyancy will move upward

    D

    The list of the vesel will become great


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    For a floating vessel,the center of the floating is the point in the waterpiane.（）.
    A

    aboat which the vessel lists and trims

    B

    which coincides with the center of buoyancy

    C

    which, in the absence of external forces, is always vertically aligned with the center of gravity

    D

    which is shown in the hydrostatic tables as VCB


    正确答案： D
    解析： 暂无解析

  • 第13题：

    单选题
    The difference between the height of the metacenter and the height of the center of gravity is known as the（）.
    A

    metacentric height

    B

    height of the righting arm

    C

    fore and aft perpendicular

    D

    height of the center of buoyancy


    正确答案： D
    解析： 暂无解析

  • 第14题：

    单选题
    In the absence of external forces，the center of buoyancy of an inclined vessel is vertically aligned directly below the（）.
    A

    center of gravity

    B

    amidships station

    C

    center of flotation

    D

    geometric center of the waterplane area


    正确答案： C
    解析： 暂无解析

  • 第15题：

    单选题
    When a vessel is inclined by an external force，the（）.
    A

    shape of the vessel's underwater hull remains the same

    B

    vessel's center of gravity shifts to the center of the vessel's underwater hull

    C

    vessel's center of buoyancy shifts to the center of the vessel's underwater hull

    D

    vessel's mean draft increases


    正确答案： B
    解析： 暂无解析

  • 第16题：

    单选题
    The center of buoyancy is located at the（）.
    A

    geometric center of the waterplane area

    B

    intersection of the vertical centerline and line of action of the buoyant force

    C

    center of gravity of the vessel corrected for free surface effects

    D

    geometric center of the displaced volume


    正确答案： A
    解析： 暂无解析

  • 第17题：

    单选题
    Stability is determined principally by the location of two points in a vessel: the center of buoyancy and the（）.
    A

    metacenter

    B

    geometric center of the waterplane area

    C

    center of gravity

    D

    center of flotation


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    The center of the underwater volume of a floating vessel is the（）.
    A

    center of buoyancy

    B

    center of flotation

    C

    uncorrected height of the center of gravity of the vessel

    D

    center of gravity of the vessel corrected for free surface effects


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    Which of the following is the reason that the metacentric height is a valid measure of only the initial stabilit?（）.
    A

    The metacenter does not remain in the same position for large angles of inclination

    B

    The center of gravity shifts due to inclination

    C

    The center of gravity shifts above the metacenter as the vessel is inclined

    D

    The mean draft will change as the vessel is inclined


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    At all angles of inclination, the metacenter is（）.
    A

    vertically above the center of buoyancy

    B

    vertically above the center of gravity

    C

    at the intersection of the upright vertical centerline and the line of action of the buoyant force

    D

    at the geometric center of the underwater volume


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to（）.
    A

    heel until the angle of loll is reached

    B

    list until the center of buoyancy is aligned vertically with the center of gravity

    C

    trim to the side opposite TCG until all moments are equal

    D

    decrease draft at the center of flotation


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    A neutral equilibrium position for a vessel means that the metacenter is（）.
    A

    lower than the keel

    B

    at the same height as the center of gravity

    C

    exactly at midships

    D

    at the center of the waterplane area


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    The important initial stability parameter，GM，is the（）.
    A

    metacentric height

    B

    height of the metacenter above the keel

    C

    height of the center of buoyancy above the keel

    D

    height of the center of gravity above the keel


    正确答案： C
    解析： 暂无解析

相关内容